JPWO2015063883A1 - Display device - Google Patents

Abstract

Without providing an attachment member, it is possible to reliably attach at least one of the panel holding member and the bezel to the holding plate of the substrate without damaging the light-emitting element mounting substrate with a simple configuration, and to dispose it on the panel holding member. Provided is a display device that can cope with an increase in area of a driving circuit board. The display module 2 of the TV receiver holds a light guide plate 23 and a substrate 30 having a plurality of LEDs 31, a substrate holding plate 24 arranged to face the side surface of the light guide plate 23, and a main surface of the light guide plate 23. The display panel 21 arranged oppositely, the panel holding member 26 that covers the substrate holding plate 24 and holds the display panel 21, and the bezel 27 that covers the peripheral edge of the display panel 21 and the panel holding member 26 are provided. A mounting portion 243 that protrudes on the opposite side of the display panel 21 extends from the substrate holding plate 24, and at least one of the panel holding member 26 and the bezel 27 is configured to be attached to the mounting portion 243 by a screw 32. Yes.

Description

  The present invention relates to a display device having an edge light type backlight.

  A liquid crystal display device is characterized by thinness and low power consumption. Due to the improvement of its display quality, the liquid crystal display device has been widely used as a display instead of a conventional CRT in recent years, and an image display of a television receiver (hereinafter referred to as a TV receiver). It is also widely used as a device. Unlike a self-luminous device, a liquid crystal display device requires a backlight as a light source, and displays an image by controlling light transmittance determined by the electro-optical characteristics of the liquid crystal.

There are two types of backlights: an edge light method (side light method, light guide plate method) and a direct type.
As a liquid crystal display device having an edge-light type backlight, a light guide plate, an optical sheet, and an LED (Light Emitting Diode) substrate are mounted on a rectangular box-shaped chassis in order to realize a thin, light, and narrow frame. And a display module in which a backlight unit is housed on the back of a liquid crystal display panel (hereinafter referred to as a display panel) is covered with a frame. The LED substrate is formed by mounting a plurality of LEDs on the plane of an elongated substrate. When the backlight unit is an edge light type on one side, the LED substrate is disposed on, for example, one long side surface of a rectangular light guide plate. Light emitted from the LED and incident on the long side surface of the light guide plate exits from the main surface of the light guide plate and irradiates the back surface of the liquid crystal display panel.

The LED substrate is attached to the side plate facing the long side surface of the light guide plate of the chassis, and the chassis does not have the side plate, and is attached to the short side portion of the LED substrate holding plate whose side view is L-shaped. There are cases. In the latter case, the long side portion of the LED substrate holding plate is connected to the chassis.
The display panel is held by a panel holding member having a rectangular frame shape, and the panel holding member is configured to cover the LED substrate and the LED substrate holding plate.
The peripheral edge portion of the display panel and the panel holding member are covered with a bezel having a rectangular frame shape.

Screws are used to fix the panel holding member and the bezel to a portion of the backlight unit that holds the LED substrate, such as the LED substrate holding plate.
There are design restrictions for thinning and narrowing the frame as described above, and in recent years, the source substrate and the like arranged on the outer surface of the panel holding member has become larger (large area) in response to higher resolution and higher definition such as 4K2K. In the case where the LED substrate is arranged on the inner surface side corresponding to the outer surface of the panel holding member, there is a problem that a sufficient space for fixing screws cannot be taken.

The invention of Patent Document 1 is disclosed as a liquid crystal display device with a narrow frame.
FIG. 13 is a partial cross-sectional view showing the liquid crystal display device of Patent Document 1. In FIG.
The liquid crystal display device includes a display panel 21, a panel holding member 26, a bezel 27, and an attachment member 39. The panel holding member 26 has a side portion and holds the display panel 21. The bezel 27 includes a front plate portion 272 that covers the peripheral portion of the display panel 21, and a side plate portion 271 that extends substantially parallel to the side portion of the panel holding member 26 and has a screw insertion hole 275. The attachment member 39 is substantially U-shaped, and is detachably attached to the side portion of the panel holding member 26, and has a female screw 391 into which the screw 40 inserted through the screw insertion hole 275 of the bezel 27 is screwed.

This display device includes the mounting member 39 as described above, and the frame region is widened by the amount of the mounting member 39, so that there is a problem that the frame cannot be narrowed and the manufacturing unit price increases. .
Further, the mounting member 39 having a substantially U-shape is fitted to the side portion of the panel holding member 26, and there is a possibility that displacement occurs when the screw 40 is fastened to the female screw 391. It is considered that the fixing to the holding member 26 is weak.
In this mounting structure, there is a problem that it is not possible to meet the requirement of arranging a plurality of source substrates on the outer surface of the panel holding member 26 with a small interval.

FIG. 14 is a partial longitudinal sectional view showing another conventional display module.
The display module includes a display panel 21, an optical sheet group 22 made of, for example, three optical sheets, a light guide plate 23, a substrate holding plate 24, a panel holding member 26, a bezel 27, an LED substrate 30, A reflection sheet 38 and an attachment member 41 are provided.
The LED substrate 30 on which the plurality of LEDs 31 are mounted is supported by the substrate holding plate 24 in a state of being disposed facing the long side surface of the light guide plate 23.

  The substrate holding plate 24 is made of, for example, aluminum, a lower plate portion 241 that covers the lower long side surface of the light guide plate 23, and a back plate that is provided perpendicular to the lower plate portion 241 and extends along the longitudinal direction of the light guide plate 23. Part 242.

  The reflection sheet 38 is a white sheet, and is formed of a resin material having light reflectivity such as PET (polyethylene terephthalate) or PC (polycarbonate). The reflection sheet 38 is provided on the back plate part 242 via the spacer 29. The light guide plate 23 is provided on the outer surface of the reflection sheet 38.

  The optical sheet group 22 is a sheet group including a diffusion sheet, a lens sheet, a reflective polarizing sheet, and the like, and is disposed on the front side of the main surface of the light guide plate 23.

The panel holding member 26 includes a lower plate part 261, a panel contact part 262, and a sheet contact part 263.
The lower plate portion 261 extends in the horizontal direction, contacts the lower plate portion 241 of the substrate holding plate 24, and supports the lower plate portion 241. Four source substrates (not shown) are arranged on the lower surface of the lower plate portion 261. A screw insertion hole 268 is provided in a gap portion of the lower plate portion 241 where adjacent source substrates are arranged.
The panel contact portion 262 is erected on the lower plate portion 261 and is in contact with the lower end edge portion of the back surface of the display panel 21 via the buffer member 33.
A sheet abutting portion 263 is connected to the upper side of the panel abutting portion 261, and the back surface of the sheet abutting portion 263 is abutted against the lower part of the front surface of the optical sheet group 22 via the buffer member 34.

  The bezel 27 is a frame body that is L-shaped in side view, and includes a side plate portion 271 and a front plate portion 272. The side plate portion 271 extends in the horizontal direction and covers the source substrate and the lower plate portion 261 of the panel holding member 26. The front plate portion 272 is provided perpendicular to the side plate portion 271, and the back surface is in contact with the lower edge of the front surface of the display panel 21 via the buffer member 28. A plurality of screw insertion holes 278 are provided in the lower portion of the front plate portion 272.

A plurality of female screws 411 are provided at the lower portion of the attachment member 41. The attachment member 41 is attached to the back surface of the back plate portion 242 of the substrate holding plate 24.
The screw 42 is inserted through the screw insertion holes 278 and 268 and screwed into the female screw 411 so that the bezel 27 and the panel holding member 26 are attached to the substrate holding plate 24.

  Since this display module includes the mounting member 41, the thickness of the display module is increased, the manufacturing cost is increased, and a screw insertion structure is provided in the gap in which the source substrate of the lower plate portion 261 of the panel holding member 26 is disposed. Therefore, there is a problem that it is impossible to meet the demand for reducing the gap.

  Further, as a structure for fixing the other bezel 27 and the panel holding member 26 to the substrate holding plate 24, a stud is caulked to the lower plate portion 241 of the substrate holding plate 24, a female screw is formed on the stud, and the side plate portion 271 of the bezel 27 is fixed. There is a structure in which the screw is screwed into the female screw in a state in which the screw is passed through from the outside.

  In this case, since the stud is provided in the lower plate portion 241, the manufacturing process becomes complicated, and since the screw fastening structure is provided in the gap where the source substrate of the lower plate portion 261 is arranged, it is possible to meet the demand for reducing the gap. There is a problem that you can not.

  Further, as a structure for fixing the bezel 27 and the panel holding member 26 to the backlight unit, a female screw is provided in the gap between the LEDs 31 of the LED substrate 30, and a screw is passed through the side plate portion 271 from the outside of the side plate portion 271 of the bezel 27. In such a state, a structure of screwing into the female screw is conceivable.

  In this case, there is a problem that the amount of engagement of the screw with the female screw decreases, and the screw hits the LED board 30 and may damage the LED board 30.

JP 2001-356321 A

  The present invention has been made in view of the above-described problems, and reliably damages the light-emitting element mounting substrate with at least one of the panel holding member and the bezel with a simple configuration without adding another component for mounting. Therefore, an object of the present invention is to provide a display device that can be attached to the holding plate of the substrate and can cope with an increase in the area of the drive circuit substrate disposed on the panel holding member.

  The display device according to the present invention holds a light guide plate and a substrate having a plurality of light emitting elements, and faces a main surface of the light guide plate. A display device comprising: a display panel disposed; a panel holding member that covers the substrate holding plate and holds the display panel; and a bezel that covers a peripheral edge of the display panel and the panel holding member. A mounting portion that protrudes on the opposite side of the display panel, and at least one of the panel holding member and the bezel is configured to be attached to the mounting portion by a fastener. To do.

In the present invention, the structure for mounting the panel holding member and the bezel to at least one of the board holding plates is obtained by changing the shape of the board holding plate without newly providing parts for mounting. When the tool is, for example, a screw, the positional deviation between the female screw and the screw insertion hole can be kept small, and the fixing strength can be maintained.
The mounting portion is on the back side from the position where the substrate having the light emitting element is disposed, the substrate having the light emitting element is disposed, and away from the portion having the complicated mounting structure, and the panel holding member and the bezel Attachment to at least one substrate holding plate can be performed easily and reliably, and a narrow frame can be achieved.
Further, when a drive circuit board such as a source board is arranged on the panel holding member, it is possible to cope with an increase in area of the drive circuit board.

  The display device according to the present invention includes a light guide plate covering plate that is provided perpendicular to the substrate holding plate and covers a plane of the light guide plate.

  In the present invention, the heat generated by the light emitting element can be radiated well.

  In the display device according to the present invention, a plurality of drive circuit boards for driving the display panel are provided outside a portion of the panel holding member that covers the substrate holding plate, and the driving of the panel holding member is performed. A portion between the circuit boards is attached to the attachment portion by the fastener.

  In the present invention, the attachment position by the fastener is between the drive circuit boards and is not on the rear side but on the front side rather than on the rear end of the drive circuit board, so that the thickness of the display device can be reduced. it can. Further, since the width (vertical width) of the drive circuit board is not restricted by the mounting structure, it can be made large, and the drive circuit board can be increased in area.

  In the display device according to the present invention, a plurality of drive circuit boards for driving the display panel are provided outside a portion of the panel holding member that covers the substrate holding plate, and the drive circuit boards are adjacent to each other. A portion of the panel holding member corresponding to the concave portion is attached to the attachment portion by the fastener. .

  In the present invention, the concave portion is provided on the back side of the portion facing the adjacent drive circuit board, and the mounting structure is arranged in the concave portion. Therefore, the front side portions of the recesses of the drive circuit board can be brought close to each other, and the area of the drive circuit board can be increased.

  In the display device according to the present invention, a plurality of drive circuit boards for driving the display panel are provided outside the portion of the panel holding member that covers the substrate holding plate, and the longitudinal direction of the panel holding member A portion of the end of the drive circuit board where the drive circuit board is not provided is attached to the attachment portion by the fastener.

  In the present invention, the drive circuit board can be arranged on the panel holding member without being restricted by the mounting structure.

  In the display device according to the present invention, a plurality of drive circuit boards for driving the display panel are provided outside a portion of the panel holding member that covers the substrate holding plate, and the driving of the panel holding member is performed. The portion opposite to the display panel with respect to the portion provided with the circuit board is attached to the attachment portion by the fastener.

  In the present invention, the drive circuit board can be arranged on the panel holding member without being restricted by the mounting structure.

  The display device according to the present invention is characterized in that the attachment portion is provided with a contact portion that protrudes toward the bezel and contacts the back surface of the bezel.

  In the present invention, by contacting the contact portion with the back surface of the bezel, when the bezel is attached to the substrate holding plate by the fastener, the front side portion of the bezel is prevented from opening outward.

  The display device according to the present invention is characterized in that the mounting portion is provided with fins for heat dissipation.

  In the present invention, the heat from the light emitting element is efficiently radiated by the fins.

  According to the present invention, the board holding plate is provided with the mounting portion that protrudes on the back side, and at least one of the panel holding member and the bezel is configured to be attached to the mounting portion by the fastener. Without mounting parts, it is possible to reliably attach at least one of the panel holding member and the bezel to the holding plate of the substrate without damaging the light emitting element mounting substrate with a simple configuration. And it can respond also to the enlargement of the area of the drive circuit board arranged in a panel holding member.

It is an external appearance perspective view of the front side of the TV receiver which concerns on Embodiment 1 of this invention. It is a back view which shows the display module which concerns on Embodiment 1 of this invention. It is the III-III sectional view taken on the line of FIG. It is a partial longitudinal cross-sectional view which shows the display module which concerns on Embodiment 1 of this invention. It is a partial longitudinal cross-sectional view which shows the display module which concerns on Embodiment 2 of this invention. It is a partial perspective view which shows the panel holding member of the display module which concerns on Embodiment 3 of this invention. It is a partial longitudinal cross-sectional view which shows the display module which concerns on Embodiment 3 of this invention. It is a partial perspective view which shows the panel holding member which concerns on Embodiment 4 of this invention. It is a partial perspective view which shows the panel holding member which concerns on Embodiment 5 of this invention. It is a partial longitudinal cross-sectional view which shows the display module which concerns on Embodiment 6 of this invention. It is a partial cross section figure which shows the display module which concerns on Embodiment 7 of this invention. It is a partial longitudinal cross-sectional view which shows the display module which concerns on Embodiment 8 of this invention. 10 is a partial cross-sectional view showing a liquid crystal display device of Patent Document 1. FIG. It is a partial longitudinal cross-sectional view which shows the other conventional display module.

Embodiment 1 FIG.
FIG. 1 is an external perspective view of a front side of a TV receiver 1 according to Embodiment 1 of the present invention, FIG. 2 is a rear view showing a display module 2, FIG. 3 is a cross-sectional view taken along line III-III in FIG. 4 is a partial longitudinal sectional view showing a display module 2. FIG.

  The TV receiver 1 is horizontally long and includes a display module 2 having a display panel 21 that displays video, a tuner 5 that receives broadcast waves from an antenna (not shown), and a decoder 6 that decodes encoded broadcast waves. With. The TV receiver 1 decodes the broadcast wave received by the tuner 5 by the decoder 6 and displays an image on the display module 2 based on the decoded information. A stand 7 that supports the TV receiver 1 is provided below the TV receiver 1.

  The display module 2 is accommodated in a vertical posture in a front cabinet 3 and a rear cabinet 4 that are arranged in a vertical posture in the front-rear direction. The front cabinet 3 is a rectangular frame that covers the peripheral edge of the display module 2, and has a rectangular opening 3a in the center. The front cabinet 3 is made of synthetic resin, for example. The rear cabinet 4 has a rectangular tray shape with the front side open, and is made of, for example, a synthetic resin. In addition, you may comprise the front cabinet 3 and the back cabinet 4 from another material.

  The front cabinet 3 and the rear cabinet 4 have substantially the same vertical and horizontal dimensions, and their peripheral portions face each other. The vertical and horizontal dimensions of the display panel 21 are slightly larger than the opening 3 a of the front cabinet 3, and the peripheral portion of the display panel 21 faces the inner edge portion of the front cabinet 3.

As shown in FIGS. 3 and 4, the display module 2 includes a display panel 21, an optical sheet group 22 including, for example, three optical sheets, a light guide plate 23, a substrate holding plate 24, a chassis 25, and a panel. The holding member 26, the bezel 27, the LED substrate 30, the source substrate 35, and the reflection sheet 38 are provided.
The optical sheet group 22, the light guide plate 23, the substrate holding plate 24, the chassis 25, the LED substrate 30, and the reflection sheet 38 constitute a backlight unit.

  The display panel 21 is an active matrix substrate (TFT) having a color filter substrate having a plurality of color filters, and a plurality of thin film transistors (hereinafter referred to as TFTs) which are arranged to face the color filter substrate and are switching elements. Substrate) and a liquid crystal layer provided as a display medium layer between the color filter substrate and the active matrix substrate.

  The light guide plate 23 has a rectangular plate shape (a rectangular parallelepiped shape), a main surface facing the display panel 21 side, a back surface opposite to the main surface and facing the chassis 25, a pair of long side surfaces, and a pair of short side surfaces. Have The lower long side surface functions as a light incident surface for introducing light into the light guide plate 23, and the light introduced from the long side surface into the light guide plate 23 is the main surface (outgoing light) of the light guide plate 23. From the surface) toward the display panel 21 side.

The chassis 25 is made of, for example, iron, and has a tray shape with an opening on the display panel 21 side.
As shown in FIGS. 2 and 3, the lower portion of the chassis 25 is connected to the substrate holding plate 24 using a plurality of screws 37.

The substrate holding plate 24 is made of, for example, aluminum, a lower plate portion 241 that covers the lower long side surface of the light guide plate 23, and a back plate that is provided perpendicular to the lower plate portion 241 and extends along the longitudinal direction of the light guide plate 23. A portion 242 and a mounting portion 243 projecting rearward from the rear side end of the lower plate portion 241. The attachment portion 243 extends along the lower end edge of the lower plate portion 241. The substrate holding plate 24 has an inverted T shape when viewed from the side. The mounting portion 243 is provided with a plurality of female screws 244.
The substrate holding plate 24 is made of aluminum and functions as a heat spreader that dissipates heat from the LEDs 31.
Note that the attachment portion 243 is not limited to a continuous plate shape, and a plurality of attachment portions 243 may be provided discontinuously according to the fastening position of the screw 32.

A main substrate holding member 251 is attached to the central portion in the horizontal direction of the connecting portion between the chassis 25 and the substrate holding plate 24. The main board holding member 251 is provided with a main board including the tuner 5 and a CPU.
The optical sheet group 22, the light guide plate 23, and the LED substrate 30 are accommodated in the chassis 25 and the substrate holding plate 24. The light source of the backlight unit is not limited to the LED.

The reflection sheet 38 is a white sheet, and is formed of, for example, a resin material having light reflectivity such as PET or PC. The reflection sheet 38 is provided on the back plate portion 242 of the substrate holding plate 24 and the bottom portion of the chassis 25 via a plurality of spacers 29.
A light guide plate 23 is provided on the outer surface of the reflection sheet 38.

  The optical sheet group 22 is a sheet group including a diffusion sheet, a lens sheet, a reflective polarizing sheet, and the like, and is disposed on the front side of the main surface of the light guide plate 23. The optical sheet group 22 diffuses and collects light emitted from the main surface of the light guide plate 23.

The LED substrate 30 is formed by mounting a plurality of LEDs 31 that emit light to be introduced into the light guide plate 23 on a plane of an aluminum substrate, for example, and is arranged on the long side surface below the light guide plate 23 as described above. Has been. The LED substrate 31 extends along the long side surface, and each LED 31 faces the long side surface of the light guide plate 23.
The LED substrate 30 is held on the upper surface of the lower plate portion 241 of the substrate holding plate 24.

The panel holding member 26 is made of a synthetic resin, for example, and is a frame body having an L shape in side view. The lower plate portion 261, the panel contact portion 262, the sheet contact portion 263, and the bezel contact portion 264 Have
The lower plate portion 261 extends in the horizontal direction, contacts the lower plate portion 241 of the substrate holding plate 24, and supports the lower plate portion 241. For example, four source substrates 35 are arranged on the lower surface of the lower plate portion 261. The source substrate 35 is connected to the active matrix substrate of the display panel 21 by a flexible wiring board 36.

The panel contact portion 262 includes a standing portion standing on the lower plate portion 261 and a contact portion that is connected to the upper side of the standing portion and forms a U-shape in a side view. In a state where the buffer member 33 is placed over the U-shaped opening of the contact portion, the contact portion is in contact with the lower edge of the back surface of the display panel 21 and supports the display panel 21. Further, the back surface of the contact portion is in contact with the lower end edge portion of the front surface of the light guide plate 23 via the buffer member 34. The lower surface of the optical sheet group 22 is in contact with the upper surface of the contact portion, and the optical sheet group 22 is supported.
A sheet contact portion 263 is continuously provided on the upper side of the panel contact portion 262 and is in contact with the lower portion of the back surface of the optical sheet group 22.
A bezel abutting portion 264 is suspended from an end of the lower plate portion 241 on the back surface side, and is configured to abut on a screw head locking portion 273 of the bezel 27 described later.

The bezel 27 is made of iron, for example, and is a frame body having an L shape in side view, and includes a side plate portion 271, a front plate portion 272, and a screw head locking portion 273. The side plate portion 271 extends in the horizontal direction and covers the source substrate 35 and the lower plate portion 261 of the panel holding member 26. The front plate portion 272 is provided perpendicular to the side plate portion 271, and the back surface is in contact with the lower edge of the front surface of the display panel 21 via the buffer member 28. That is, the display panel 21 is sandwiched between the bezel 27 and the panel holding member 26 via the buffer members 28 and 33.
A screw head locking portion 273 that extends rearward in a state of being recessed inward is provided at the rear side end portion of the side plate portion 271. A screw insertion hole 274 is provided in the screw head locking portion 273.

In the present embodiment, the screw 32 engages the female screw 244 of the substrate holding plate 24 with the peripheral edge of the head locked to the screw head locking part 273 and the leg inserted through the screw insertion hole 274. It is screwed in.
As a result, both the panel holding member 26 and the bezel 27 are fixed to the substrate holding plate 24. That is, the structure of attaching the panel holding member 26 and the bezel 27 to the board holding plate 24 is obtained by changing the shape of the board holding plate 24 without providing a new member. The female screw 244 and the screw insertion hole 274 are obtained. Can be kept small, and a fixed strength can be maintained.

  The fastening position of the screw 32 is on the back side of the source substrate 35, the LED substrate 30 is disposed, and away from the portion having a complicated mounting structure, and is not restricted by the arrangement of the source substrate 35. The panel holding member 26 and the bezel 27 can be easily and reliably fixed to the holding plate 24. And a narrow frame can be achieved. In addition, the gap between the source substrates 35 can be reduced to increase the size of the source substrate 35 to cope with higher resolution.

Embodiment 2. FIG.
The display module 12 according to the second embodiment of the present invention has the same configuration as the display module 2 according to the first embodiment except that the shape of the substrate holding plate 24 is different.
FIG. 5 is a partial longitudinal sectional view showing the display module 12 according to the second embodiment. In the figure, the same parts as those in FIG.
The substrate holding plate 24 is made of, for example, aluminum, a lower plate portion 241 that covers the lower long side surface of the light guide plate 23, and a back plate that is provided perpendicular to the lower plate portion 241 and extends along the longitudinal direction of the light guide plate 23. Part 242, mounting part 243 protruding from the rear side end of lower plate part 241, and bezel contact that is suspended from the lower surface of mounting part 243 and contacts the upper surface of screw head locking part 273 of bezel 27 Part 245.

  In the present embodiment, when the screw 32 is fastened to the female screw 244 of the substrate holding plate 24 by bringing the bezel contact portion 245 into contact with the back surface of the screw head locking portion 273, the front plate portion 272 of the bezel 27 is Opening outside is prevented.

Embodiment 3 FIG.
The display module 13 according to the third embodiment of the present invention has the same configuration as the display module 2 according to the first embodiment except that the fastening position of the screw 32 is different.
FIG. 6 is a partial perspective view showing the panel holding member 26 of the display module 13, and FIG. 7 is a partial vertical sectional view of the display module 13. In the figure, the same parts as those in FIG.
The bezel contact portion 264 of the panel holding member 26 of the display module 13 includes a rectangular parallelepiped portion and an inverted U-shaped portion. After the bezel 27 is brought into contact with the bezel contact portion 264, the screw 32 is inserted through the screw insertion hole 274 and the bezel contact portion 264, and is screwed into the female screw 244 of the mounting portion 243. The member 26 is fixed to the substrate holding plate 24.

  As shown in FIG. 6, the source substrates 35, 35 are arranged on the panel holding member 26 so that the source substrates 35, 35 sandwich the bezel contact portion 264. That is, the fastening position of the screw 32 is between the source substrates 35 and 35 and is not on the rear side of the rear side end portion of the source substrate 35 as in the first embodiment but on the front side. Therefore, the thickness of the display module 13 can be reduced. Moreover, when the thickness is the same as that of the display module 2 according to Embodiment 1, the width of the source substrate 35 can be increased, and the source substrate 35 can be made larger.

Embodiment 4 FIG.
The display module according to Embodiment 4 of the present invention has the same configuration as the display module 13 according to Embodiment 3 except that the shape of the source substrate 35 is different.
FIG. 8 is a partial perspective view showing the panel holding member 26 according to the fourth embodiment. In the figure, the same parts as those in FIG. The cross-sectional configuration of the display module is the same as the configuration of FIG.

  The source substrate 35 of the present embodiment has a notch 351 on the back side in a portion facing the adjacent source substrate 35. As shown in FIG. 8, the upper side (front side) of the notch 351 can be brought close to each other, the area of the source substrate 35 can be increased, and the resolution can be increased.

Embodiment 5. FIG.
The display module according to Embodiment 5 of the present invention has the same configuration as that of the display module 13 according to Embodiment 3 except that the fastening position of the screw 32 is different.
FIG. 9 is a partial perspective view showing the panel holding member 26 according to the fifth embodiment. In the figure, the same parts as those in FIG. The configuration of the cross section is the same as the configuration of FIG.

  In the present embodiment, the bezel abutting portion 264 is provided at a portion of the lateral end portion of the lower plate portion 261 where the source substrate 35 is not disposed. After the bezel 27 is brought into contact with the bezel contact portion 264, the screw 32 is inserted through the screw insertion hole 274 and the bezel contact portion 264 and is screwed into the female screw 244 of the protruding portion 243. That is, the fastening position of the screw 32 is closer to the end side than the position of the source substrate 35, and the panel holding member 26 and the bezel 27 are fixed to the substrate holding plate 24 without being restricted by the arrangement of the source substrate 35. Can do.

Embodiment 6 FIG.
The display module 14 according to the sixth embodiment of the present invention has the same configuration as the display module 2 according to the first embodiment except that the shape of the substrate holding plate 24 is different.
FIG. 10 is a partial longitudinal sectional view showing the display module 14 according to the sixth embodiment. In the figure, the same parts as those in FIG.

  The substrate holding plate 24 is made of, for example, aluminum, a lower plate portion 241 that covers the lower long side surface of the light guide plate 23, and a back plate that is provided perpendicular to the lower plate portion 241 and extends along the longitudinal direction of the light guide plate 23. A portion 242 and a mounting portion 243 projecting rearward from the rear side end of the lower plate portion 241. The attachment portion 243 extends along the lower end edge of the lower plate portion 241. A plurality of female screws 244 are provided in the mounting portion 243, and a plurality of fins 246 are arranged in parallel in the front-back direction at a portion where the female screws 244 are not provided, as shown in FIG.

  In the present embodiment, heat from the LED 31 is efficiently radiated by the fins 246.

Embodiment 7 FIG.
The display module 15 according to the seventh embodiment of the present invention has the same configuration as the display module 2 according to the first embodiment except that the shape of the panel holding member 26 is different.
FIG. 11 is a partial cross-sectional view showing the display module 15 according to the seventh embodiment. In the figure, the same parts as those in FIG.

  The substrate holding plate 24 is made of, for example, aluminum, a lower plate portion 241 that covers the lower long side surface of the light guide plate 23, and a back plate that is provided perpendicular to the lower plate portion 241 and extends along the longitudinal direction of the light guide plate 23. A portion 242 and a mounting portion 243 projecting rearward from the rear side end of the lower plate portion 241. The attachment portion 243 is provided with a plurality of female screws 244.

The panel holding member 26 is a frame body having an L shape in a side view, and includes a lower plate portion 261, a panel contact portion 262, and a sheet contact portion 263. Unlike the panel holding member 26 according to the first embodiment, the bezel contact portion 264 is not provided.
The lower plate portion 261 is in contact with the lower plate portion 241 of the substrate holding plate 24 and supports the lower plate portion 241. A source substrate (not shown) is disposed on the lower surface of the lower plate portion 261.
The panel contact portion 262 includes a standing portion standing on the lower plate portion 261 and a contact portion that is connected to the upper side of the standing portion and forms a U-shape in a side view. In a state where the buffer member 33 is hung on the U-shaped opening of the contact portion, the contact portion is in contact with the lower edge of the back surface of the display panel 21 and supports the display panel 21. The lower surface of the optical sheet group 22 is in contact with the upper surface of the contact portion, and the optical sheet group 22 is supported.
A sheet abutting portion 263 is continuously provided on the upper side of the panel abutting portion 261, and abuts against a lower portion of the back surface of the optical sheet group 22.

The bezel 27 is a frame body having an L shape in side view, and includes a side plate portion 271, a front plate portion 272, and a screw head locking portion 273. The side plate portion 271 extends in the horizontal direction and covers the source substrate and the lower plate portion 261 of the panel holding member 26. The front plate portion 272 is provided perpendicular to the side plate portion 271, and the back surface is in contact with the lower edge of the front surface of the display panel 21 via the buffer member 28.
A screw head locking portion 273 that extends rearward in a state of being recessed inward is provided at the rear side end portion of the side plate portion 271. A screw insertion hole 274 is provided in the screw head locking portion 273.

  In the present embodiment, the bezel 27 is attached to the substrate holding plate 24 by inserting the screw 32 through the screw insertion hole 274 and screwing it into the female screw 244 of the attachment portion 243. That is, the structure of attaching the bezel 27 to the board holding plate 24 is obtained by changing the shape of the board holding plate 24 without newly providing components, and the positional deviation between the female screw 244 and the screw insertion hole 274 is obtained. It can be kept small, and the fixed strength can be maintained.

  The fastening position of the screw 32 is away from the portion having the complicated mounting structure where the LED board 30 is arranged, and is not restricted by the arrangement of the source board, and the bezel 27 can be easily and reliably secured to the board holding plate 24. Can be fixed to. A narrow frame can be achieved and the source substrate can be increased in size.

Embodiment 8 FIG.
The display module 16 according to the eighth embodiment of the present invention has the same configuration as the display module 2 according to the first embodiment, except that the shape of the bezel 27 is different.
FIG. 12 is a partial longitudinal sectional view showing the display module 16 according to the eighth embodiment. In the figure, the same parts as those in FIG.

  The substrate holding plate 24 is made of, for example, aluminum, and includes a lower plate portion 241, a back plate portion 242, and an attachment portion 243 that protrudes rearward from the rear side end portion of the lower plate portion 241. The attachment portion 243 is provided with a plurality of female screws 244.

The panel holding member 26 is a frame body having an L shape in a side view, and includes a lower plate portion 261, a panel contact portion 262, a sheet contact portion 263, and a screw insertion hole 265. Unlike the panel holding member 26 according to the first embodiment, the bezel contact portion 264 is not provided.
The lower plate portion 261 is in contact with the lower plate portion 241 of the substrate holding plate 24 and supports the lower plate portion 241. A plurality of source substrates (not shown) are arranged on the lower surface of the lower plate portion 261. A plurality of screw insertion holes 265 are provided at the rear side end of the lower plate portion 261.
The panel contact portion 262 includes a standing portion standing on the lower plate portion 261 and a contact portion that is connected to the upper side of the standing portion and forms a U-shape in a side view. In a state where the buffer member 33 is hung on the U-shaped opening of the contact portion, the contact portion is in contact with the lower edge of the back surface of the display panel 21 and supports the display panel 21. Then, the lower surface of the optical sheet group 22 is brought into contact with the upper surface of the contact portion, and the optical sheet group 22 is supported.
A sheet abutting portion 263 is continuously provided on the upper side of the panel abutting portion 261, and abuts against a lower portion of the back surface of the optical sheet group 22.

  The bezel 27 is a frame body that is L-shaped in side view, and includes a side plate portion 271 and a front plate portion 272. Unlike the display module 2 according to the first embodiment, the screw head locking portion 273 is not provided. The side plate portion 271 extends in the horizontal direction and covers the source substrate and the lower plate portion 261 of the panel holding member 26. The front plate portion 272 is provided perpendicular to the side plate portion 271, and the back surface is in contact with the lower edge of the front surface of the display panel 21 via the buffer member 28.

  In the present embodiment, the panel holding member 26 is attached to the substrate holding plate 24 by inserting the screw 32 through the screw insertion hole 265 and screwing it into the female screw 244 of the attachment portion 243. That is, the structure for mounting the panel holding member 26 to the board holding plate 24 is obtained by changing the shape of the board holding plate 24 without newly providing parts, and the positions of the female screw 244 and the screw insertion hole 265 are obtained. The shift can be suppressed to a small level, and the fixed strength can be maintained.

  The fastening position of the screw 32 is away from the portion having the complicated mounting structure where the LED board 30 is arranged, and the panel holding member 26 can be easily attached to the board holding plate 24 without being restricted by the arrangement of the source board. Can be securely fixed. A narrow frame can be achieved and the source substrate can be increased in size.

  Embodiments 1 to 8 disclosed this time are examples in all respects, and should not be considered restrictive. The scope of the present invention is not intended to include the above-described meanings, but is intended to include meanings equivalent to the claims and all modifications within the scope of the claims.

For example, in the first to eighth embodiments, the case where the display module 2 of the TV receiver 1 is the one-side edge light system is described. However, the present invention is not limited to this. The present invention can also be applied to a display module of the type.
The case where the LED substrate 30 is arranged on the long side surface side of the light guide plate 23 has been described, but the present invention is not limited to this. In the present invention, the LED substrate 30 is arranged on the short side surface side of the light guide plate 23. This can also be applied to the case where the gate substrate is arranged on the outer surface of the panel holding member 26.

Furthermore, the present invention is not limited to the case where the LED substrate 30 is held by the substrate holding plate 24, and a chassis having a side plate on the lower side may be used, and the LED substrate 30 may be held on the side plate. In this case, an attachment portion that protrudes rearward from the rear side end portion of the side plate is provided, and at least one of the bezel 27 and the panel holding member 26 is attached to the attachment portion.
Moreover, in the said Embodiment 1-8, although demonstrated about the case where the screw 32 is used as a fastener, it is not limited to this, A pin etc. may be sufficient.

DESCRIPTION OF SYMBOLS 1 TV receiver 2, 12, 13, 14, 15, 16 Display module 21 Display panel 22 Optical sheet group 23 Light guide plate 24 Substrate holding plate 241 Lower plate part 242 Back plate part (Light guide plate covering plate)
243 Mounting portion 244 Female screw 245 Bezel contact portion 25 Chassis 26 Panel holding member 261 Lower plate portion 262 Panel contact portion 263 Sheet contact portion 264 Bezel contact portion 265 Screw insertion hole 27 Bezel 271 Side plate portion 272 Front plate portion 273 Screw Head locking part 274 Screw insertion hole 30 LED board 31 LED
32 Screw 35 Source board (Drive circuit board)

The panel holding member 26 includes a lower plate part 261, a panel contact part 262, and a sheet contact part 263.
The lower plate portion 261 extends in the horizontal direction, contacts the lower plate portion 241 of the substrate holding plate 24, and supports the lower plate portion 241. Four source substrates (not shown) are arranged on the lower surface of the lower plate portion 261. A screw insertion hole 268 is provided in a gap portion of the lower plate portion 241 where adjacent source substrates are arranged.
The panel contact portion 262 is erected on the lower plate portion 261 and is in contact with the lower end edge portion of the back surface of the display panel 21 via the buffer member 33.
A sheet abutting portion 263 is connected to the upper side of the panel abutting portion 262 , and the back surface of the sheet abutting portion 263 is in contact with the lower part of the front surface of the optical sheet group 22 via the buffer member 34.

The LED substrate 30 is formed by mounting a plurality of LEDs 31 that emit light to be introduced into the light guide plate 23 on a plane of an aluminum substrate, for example, and is arranged on the long side surface below the light guide plate 23 as described above. Has been. The LED substrate 30 extends along the long side surface, and each LED 31 faces the long side surface of the light guide plate 23.
The LED substrate 30 is held on the upper surface of the lower plate portion 241 of the substrate holding plate 24.

The panel contact portion 262 includes a standing portion standing on the lower plate portion 261 and a contact portion that is connected to the upper side of the standing portion and forms a U-shape in a side view. In a state where the buffer member 33 is placed over the U-shaped opening of the contact portion, the contact portion is in contact with the lower edge of the back surface of the display panel 21 and supports the display panel 21. Further, the back surface of the contact portion is in contact with the lower end edge portion of the front surface of the light guide plate 23 via the buffer member 34. The lower surface of the optical sheet group 22 is in contact with the upper surface of the contact portion, and the optical sheet group 22 is supported.
A sheet contact portion 263 is continuously provided on the upper side of the panel contact portion 262 and is in contact with the lower portion of the back surface of the optical sheet group 22.
A bezel abutting portion 264 is suspended from an end portion on the back side of the lower plate portion 261 and is configured to abut on a screw head locking portion 273 of the bezel 27 described later.

Embodiment 2. FIG.
The display module 12 according to the second embodiment of the present invention has the same configuration as the display module 2 according to the first embodiment except that the shape of the substrate holding plate 24 is different.
FIG. 5 is a partial longitudinal sectional view showing the display module 12 according to the second embodiment. In the figure, 4 the same parts and a detailed description thereof will be omitted with denoted by the same reference numerals.
The substrate holding plate 24 is made of, for example, aluminum, a lower plate portion 241 that covers the lower long side surface of the light guide plate 23, and a back plate that is provided perpendicular to the lower plate portion 241 and extends along the longitudinal direction of the light guide plate 23. Part 242, mounting part 243 protruding from the rear side end of lower plate part 241, and bezel contact that is suspended from the lower surface of mounting part 243 and contacts the upper surface of screw head locking part 273 of bezel 27 Part 245.

In the present embodiment, the bezel abutting portion 264 is provided at a portion of the lateral end portion of the lower plate portion 261 where the source substrate 35 is not disposed. After the bezel 27 is in contact with the bezel contact portion 264, the screw 32 is inserted through the screw insertion hole 274 and the bezel contact portion 264 and is screwed into the female screw 244 of the attachment portion 243. That is, the fastening position of the screw 32 is closer to the end side than the position of the source substrate 35, and the panel holding member 26 and the bezel 27 are fixed to the substrate holding plate 24 without being restricted by the arrangement of the source substrate 35. Can do.

The substrate holding plate 24 is made of, for example, aluminum, a lower plate portion 241 that covers the lower long side surface of the light guide plate 23, and a back plate that is provided perpendicular to the lower plate portion 241 and extends along the longitudinal direction of the light guide plate 23. A portion 242 and a mounting portion 243 projecting rearward from the rear side end of the lower plate portion 241. The attachment portion 243 extends along the lower end edge of the lower plate portion 241. The mounting portion 243 is provided with a plurality of female screws 244 (not shown) , and a plurality of fins 246 are juxtaposed in the normal direction in the portion where the female screws 244 are not provided, as shown in FIG. Yes.

The panel holding member 26 is a frame body having an L shape in a side view, and includes a lower plate portion 261, a panel contact portion 262, and a sheet contact portion 263. Unlike the panel holding member 26 according to the first embodiment, the bezel contact portion 264 is not provided.
The lower plate portion 261 is in contact with the lower plate portion 241 of the substrate holding plate 24 and supports the lower plate portion 241. A source substrate (not shown) is disposed on the lower surface of the lower plate portion 261.
The panel contact portion 262 includes a standing portion standing on the lower plate portion 261 and a contact portion that is connected to the upper side of the standing portion and forms a U-shape in a side view. In a state where the buffer member 33 is hung on the U-shaped opening of the contact portion, the contact portion is in contact with the lower edge of the back surface of the display panel 21 and supports the display panel 21. The lower surface of the optical sheet group 22 is in contact with the upper surface of the contact portion, and the optical sheet group 22 is supported.
A sheet contact portion 263 is continuously provided on the upper side of the panel contact portion 262 and is in contact with the lower portion of the back surface of the optical sheet group 22.

The panel holding member 26 is a frame body having an L shape in a side view, and includes a lower plate portion 261, a panel contact portion 262, a sheet contact portion 263, and a screw insertion hole 265. Unlike the panel holding member 26 according to the first embodiment, the bezel contact portion 264 is not provided.
The lower plate portion 261 is in contact with the lower plate portion 241 of the substrate holding plate 24 and supports the lower plate portion 241. A plurality of source substrates (not shown) are arranged on the lower surface of the lower plate portion 261. A plurality of screw insertion holes 265 are provided at the rear side end of the lower plate portion 261.
The panel contact portion 262 includes a standing portion standing on the lower plate portion 261 and a contact portion that is connected to the upper side of the standing portion and forms a U-shape in a side view. In a state where the buffer member 33 is hung on the U-shaped opening of the contact portion, the contact portion is in contact with the lower edge of the back surface of the display panel 21 and supports the display panel 21. Then, the lower surface of the optical sheet group 22 is brought into contact with the upper surface of the contact portion, and the optical sheet group 22 is supported.
A sheet contact portion 263 is continuously provided on the upper side of the panel contact portion 262 and is in contact with the lower portion of the back surface of the optical sheet group 22.

Claims (8)

A light guide plate, a substrate holding plate that holds a substrate having a plurality of light emitting elements, and is disposed to face a side surface of the light guide plate; a display panel that is disposed to face a main surface of the light guide plate; In a display device comprising a panel holding member that covers a substrate holding plate and holds the display panel, and a bezel that covers a peripheral edge of the display panel and the panel holding member,
In the substrate holding plate, a mounting portion that protrudes on the opposite side of the display panel is extended,
A display device, wherein at least one of the panel holding member and the bezel is configured to be attached to the attachment portion by a fastener.   The display device according to claim 1, further comprising a light guide plate covering plate that is provided perpendicular to the substrate holding plate and covers a plane of the light guide plate. A plurality of drive circuit boards for driving the display panel are provided outside the portion of the panel holding member that covers the substrate holding plate,
The display device according to claim 1, wherein a portion of the panel holding member between the drive circuit boards is attached to the attachment portion by the fastener. A plurality of drive circuit boards for driving the display panel are provided outside the portion of the panel holding member that covers the substrate holding plate,
The drive circuit board has a recess on a side opposite to the display panel in a portion facing the adjacent drive circuit board, and the portion of the panel holding member corresponding to the recess is attached to the attachment portion by the fastener. The display device according to claim 1, wherein the display device is a display device. A plurality of drive circuit boards for driving the display panel are provided outside the portion of the panel holding member that covers the substrate holding plate,
The display device according to claim 1, wherein a portion of the end portion of the panel holding member in the longitudinal direction where the drive circuit board is not provided is attached to the attachment portion by the fastener. A plurality of drive circuit boards for driving the display panel are provided outside the portion of the panel holding member that covers the substrate holding plate,
The portion of the panel holding member on the side opposite to the display panel with respect to the portion where the drive circuit board is provided is attached to the attachment portion by the fastener. The display device described.   7. The display device according to claim 1, wherein the attachment portion is provided with a contact portion that protrudes toward the bezel and contacts the back surface of the bezel.   The display device according to claim 1, wherein fins for heat dissipation are provided in the attachment portion.

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